Gold-saving apparatus.



A. l. JARMUTH.

GOLD SAVING APPARATUS.

APPLICATION man 050.11. 1915.

Patented July 9, 1918.

FHma-uma. wAsumsmu, n. c.

TE sT PT N OFFICE.

ADOLPH JARMUTH, OF SEATTLE, WA INGTON, ASSIGNOR To ERASTUS s. BENNETT,

a OF NEW YORK, N. Y.

GOLD-SAVING APPARATUS.

i Specification of Letters Patent.

Patented July 9, 1918.

Application at December 17, 1915. Serial No. 67,433.

To all whom it may 00noe'm;,- V

Be it known that I, AnoLrH J. J ARMUTH, a citizen of the United States,residing at. Seattle, Washington, have invented certain new and usefulImprovements in Gold- Saving Apparatus, of which the following is aspecification.

The invention relates to a gold saving apparatus of the generaltypedisclosed in Letters Patent of the UnitedStates granted to ErastusS. Bennett, April 2nd, 1907, No.

Set9,101, and concerns particularly thecon struction and arrangement ofthe pockets the upper edge of the tank and shown in saidpatent on theinclined sides of the tank;

The invention consists in the features and combination and arrangementof parts hereinafter described and particularly pointed.

out in the cla ms. 7

In the accompanying drawing 7 I I I Figure 1 represents a sectional viewof a portion of the inclined side of the tank with my improvementscombined therewith.

Fig. '2 is a face view of a portion of a tier of pockets. Fig. 3 is adetail perspective view.

In carrying out the invention I aim to provide a continuous surface ofnon-oxidizable material having an aflinity for mercury extending fromthe uppermost pocket of the tier thereof, and, in carrying theinvention, I

out this feature of tending from one pocket ,to :anotlleiyflbut with myimprovement I extend the new oxidizable material of the apron to formcontact with a metallic-surface, with which A it has an affinity toprovide an unbroken.

mercury body or covered surface to prevent the sand from reaching a.point where it would tend to displace the mercury.

In the drawings, 1 indicates the inclined side of the tank and 2indicates bars or rails arranged in pairs and substantially, thoughremovably, hung or attached to the tank side, and while this may beaccomplished in various ways, I prefer to form the rails with a hookedupper end which may engage over thus susthe to the lowermost pocketstill employ the, aprons. shown in the above mentioned patent, ex-' pendthe said rails in place or clamp screws may be used, These rails, asbefore stated, are arranged in pairs and each pair serves. to carry thesupporting meansfor the pockets and aprons, and while these supports maybe of various forms, I have illustrated. thenr in the form of troughs orpocket shaped members 3, which may be of nonamalgamable material, theends of which" troughs orpocket-like supports are riveted at 4 to thesaid rails or side bars and forming with the pair of rails, a ladderlike structure, which may be removed from or replaced in the apparatusas one body. These supports 3 hold the mercury-receptacles or pocketlinings which consist of sheet metal of trough form, shown at 5,providedv with end portions or walls 6, the troughs orpockets being ofsuch dimensions as to fit close against the end walls of the supportingtroughs 3 and to rest on the bottomsof said supporting members. Thissheet metal, of which the mercury holders or pocket linings are made, isof non-oxidizable metal or metal having a non-oxidizable coating, suchas silver, having an affinity for the mercury. From the front edge ofeach mercury holding pocket or receptacle an apron. 7 extends downwardlyinto the mercury holding pocket or container next below it andpreferably the end of this apron is turned inwardly so as to lie alongthe wall of the next lower pocket lining and it ex tends far enoughto'be immersed in the body of. the mercury and it forms substantially acontinuous silvered surface from the front edge of one pocket to theouter or rear wall of the next pocket below and to a point below thesurface of the mercury therein. It will be understood that a .tank forthe purpose described, namely of saving gold, is. agitated, as stated inthe patent before referred to, and a suflicient body of mercury is heldin each pocket so that a wave-like motion is produced along the surfaceof the mercury, due either to the vibration of the machinery or to meansdirectly causing said vibration, the effect of which motion on thesurface of the body of mercury is to break up and reduce the section ofsand which naturally tends to rest on the surface of the mercury andwhich would otherwise pack thereon and prevent the passage through it ofthe gold into the pockets. The wave-like motion keeps the sand loosenedand gravitating particles of gold or ore can readily pass through thesand into the pockets. The mercury,

10W the surface of the mercury and displace any ofthe body of themercury. The mercury is delivered to the apparatus in sub stantially thesame Way as in the patent referred to,-namely by a pipe at the top ofthe tank Wall. The material in passing over the front edge of the pocketor pocket lining is apt in time to'Wear this away if provision is'notmade'to prevent this,- and I, therefore, reinforce the front edge of thepocket by a strip 8 of non-oxidizable metal or a metal having anon-oXidiza-ble coating, such as silver,-thisstrip being substantiallyof U shape and" simply gripping by its downwardly extending sides theupturned edge ofthe pocket or lining and the adj acent'portie-n of theupper edge of the reinforcing or Wearing strip may be readily removedand replaced by another When Worn; The poCkets, or as they may be calledthe linings of non-oxidizable material, together with their aprons, maybe individually removed from the supports 3 in cleaning up, or'the Wholeseries or tier of pockets may be removed as one body by simply liftingout the ladder-like structure composed of the rails or sides 2 with thesupports 3 and the" pocket linings and aprons carried thereby.

In order to hold the linings or pockets 5" in place on the supports 3,any suitable means may be provided, but as one means for this purpose Iemploy spring catches or plates 9 Which may be attached to the supports3 and overlie a portion of the removable lining or pockets, so that bypress-' ing these spring catches to one side the linings may be removed.7

The aprons areformed of thin sheet metal and in order to preventtheirdisplacement or distortion by the Weight of the material Gopies'otthis patent may be obtained for however, being contained a pocketcomposed of metal or coated With" apron. Thisacting upon them, I providebacking members or filling pieces 10 of sheet metal having their ends11' bent from the main body and riveted or otherwise secured to the siderails 2. H Themain portions of these backing pieces lie close againstthe aprons and supportthem against displacement.

One principal object of the invention is tom'ake' the mercury follow allthe surfaces of the pockets or linings therefor and to leave no metalexposedwhiclrwould haveanmaterial must pass, thereby protecting thesaidedge, substantially as described.

2. In combination, in a gold saving apparatus, a tank side, a mercuryholding pocket having an apron depending from its edge and a reinforcingmember removably he d at and overlapping the point of junction between;the mercury pocket and apron, and protecting said junction point fromwear ofthe passing material, substantially as described.

3. In combination in a gold saving app'aratus, atank side, a mercuryholding pocket composed of thin sheet metal, a support for said pocketand a reinforcing piece of inverted U-shape in cross section removablymounted on the" edge of said pocket over which the material must pass,whereby the said edge is protected from the Wearresulting from thepassage of the material, substantially as described;

IntestimOny'WhereOL-I affix my signature inpresence of two'witnes'ses. 7

ADOLPH J. JARMUTH. Witnesses:

' ALrnED'l/V. GREENER,

ARTHUR P. BRISBANE.

five cents eachg b'y addressin'gtheCommissioner of IE'aten'ts.Wesh1ngton ,D.0.

